🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596.3

Radius: 11.2

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.61 AU - 0.83 AU

Year: 401 Days

Day: 8.3 Hours

Environment

Temp: -138 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 84,971,239 km

• M1: 139,276 km (0.077 R)
• M2: 531,671 km (0.114 R)
• M3: 890,407 km (0.103 R)
• M4: 1,482,365 km (0.065 R)
• M5: 2,368,284 km (0.099 R)
• M6: 2,812,290 km (0.108 R)
• M7: 3,529,911 km (0.087 R)
• M8: 4,034,655 km (0.032 R)
• M9: 4,601,331 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863.9

Radius: 14.8

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.6 AU - 0.9 AU

Year: 426 Days

Day: 5.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 84,971,239 km

• M1: 184,005 km (0.107 R)
• M2: 731,833 km (0.092 R)
• M3: 1,431,053 km (0.106 R)
• M4: 1,995,935 km (0.092 R)
• M5: 2,463,877 km (0.118 R)
• M6: 3,301,027 km (0.067 R)
• M7: 4,112,745 km (0.069 R)
• M8: 4,596,095 km (0.093 R)
• M9: 5,730,346 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.7

Radius: 13.2

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.19 AU - 1.37 AU

Year: 950 Days

Day: 14.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 84,971,239 km

• M1: 164,109 km (0.078 R)
• M2: 634,295 km (0.109 R)
• M3: 1,309,281 km (0.103 R)
• M4: 1,730,548 km (0.057 R)
• M5: 2,660,748 km (0.108 R)
• M6: 3,129,587 km (0.112 R)
• M7: 3,584,963 km (0.075 R)
• M8: 4,047,670 km (0.036 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208.2

Radius: 8.9

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.35 AU - 1.65 AU

Year: 1205 Days

Day: 13.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 84,971,239 km

• M1: 113,395 km (0.07 R)
• M2: 542,891 km (0.052 R)
• M3: 1,264,850 km (0.119 R)
• M4: 1,905,129 km (0.042 R)
• M5: 3,540,682 km (0.112 R)
• M6: 4,495,566 km (0.086 R)
• M7: 6,147,425 km (0.088 R)
• M8: 6,570,338 km (0.052 R)
• M9: 7,142,401 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327.3

Radius: 11.3

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.37 AU - 1.95 AU

Year: 1403 Days

Day: 11.6 Hours

Environment

Temp: -182 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 84,971,239 km

• M1: 140,472 km (0.067 R)
• M2: 583,132 km (0.111 R)
• M3: 967,449 km (0.092 R)
• M4: 1,321,548 km (0.115 R)
• M5: 1,676,992 km (0.101 R)
• M6: 2,189,664 km (0.077 R)
• M7: 2,671,220 km (0.109 R)
• M8: 3,048,356 km (0.116 R)
• M9: 3,461,246 km (0.104 R)
• M10: 3,833,745 km (0.103 R)
• M11: 5,191,794 km (0.108 R)
• M12: 5,561,750 km (0.111 R)
• M13: 6,333,076 km (0.116 R)
• M14: 6,916,807 km (0.074 R)
• M15: 8,885,515 km (0.109 R)
• M16: 9,531,329 km (0.105 R)
• M17: 10,118,052 km (0.059 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 854.7

Radius: 10.2

Gravity: 8.22 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 2.21 AU - 2.33 AU

Year: 2244 Days

Day: 7.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 84,971,239 km

• M1: 126,859 km (0.092 R)
• M2: 483,052 km (0.113 R)
• M3: 987,944 km (0.072 R)
• M4: 1,772,286 km (0.09 R)
• M5: 2,340,010 km (0.078 R)
• M6: 2,818,873 km (0.112 R)
• M7: 5,870,370 km (0.101 R)
• M8: 6,507,956 km (0.028 R)
• M9: 7,191,170 km (0.081 R)
• M10: 7,765,326 km (0.112 R)
• M11: 9,529,384 km (0.119 R)
• M12: 11,344,755 km (0.079 R)
• M13: 11,915,022 km (0.081 R)
• M14: 12,419,017 km (0.113 R)
• M15: 12,937,074 km (0.111 R)
• M16: 13,514,522 km (0.099 R)
• M17: 14,483,617 km (0.114 R)
• M18: 15,947,582 km (0.068 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 722.3

Radius: 3

Gravity: 80.26 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 5.89 AU - 8.63 AU

Year: 12833 Days

Day: 22.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 84,971,239 km

• M1: 37,250 km (0.105 R)
• M2: 141,819 km (0.118 R)
• M3: 356,641 km (0.07 R)
• M4: 457,620 km (0.12 R)
• M5: 765,642 km (0.118 R)
• M6: 915,539 km (0.043 R)
• M7: 1,234,631 km (0.08 R)
• M8: 1,545,645 km (0.106 R)
• M9: 1,819,858 km (0.073 R)
• M10: 2,977,446 km (0.113 R)
• M11: 4,005,483 km (0.104 R)
• M12: 5,496,525 km (0.102 R)
• M13: 7,105,450 km (0.119 R)
• M14: 7,993,613 km (0.061 R)
• M15: 8,368,654 km (0.094 R)
• M16: 9,773,977 km (0.106 R)
• M17: 11,040,173 km (0.072 R)
• M18: 11,387,540 km (0.067 R)
• M19: 11,862,064 km (0.097 R)
• M20: 13,759,115 km (0.105 R)
• M21: 14,161,383 km (0.089 R)
• M22: 21,616,892 km (0.095 R)
• M23: 23,368,235 km (0.088 R)
• M24: 26,837,708 km (0.077 R)
• M25: 28,209,222 km (0.08 R)
• M26: 31,320,259 km (0.118 R)
• M27: 32,132,276 km (0.095 R)
• M28: 34,162,469 km (0.108 R)
• M29: 34,898,939 km (0.06 R)
• M30: 36,658,509 km (0.115 R)
• M31: 46,348,562 km (0.103 R)
• M32: 49,401,106 km (0.08 R)
• M33: 52,584,848 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 977.6

Radius: 4.8

Gravity: 42.43 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 8.46 AU - 10.9 AU

Year: 19757 Days

Day: 22.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 84,971,239 km

• M1: 59,989 km (0.089 R)
• M2: 229,483 km (0.092 R)
• M3: 394,639 km (0.094 R)
• M4: 1,001,259 km (0.107 R)
• M5: 1,402,480 km (0.12 R)
• M6: 1,622,090 km (0.047 R)
• M7: 2,004,761 km (0.081 R)
• M8: 2,492,600 km (0.104 R)
• M9: 2,790,299 km (0.082 R)
• M10: 3,700,303 km (0.114 R)
• M11: 3,858,578 km (0.052 R)
• M12: 4,430,790 km (0.088 R)
• M13: 4,792,966 km (0.114 R)
• M14: 5,213,635 km (0.09 R)
• M15: 13,135,291 km (0.111 R)
• M16: 13,430,149 km (0.081 R)
• M17: 14,497,380 km (0.086 R)
• M18: 16,541,336 km (0.102 R)
• M19: 17,945,910 km (0.063 R)
• M20: 19,238,436 km (0.066 R)
• M21: 21,291,517 km (0.039 R)
• M22: 22,950,707 km (0.089 R)
• M23: 24,693,971 km (0.116 R)
• M24: 25,942,515 km (0.119 R)
• M25: 29,434,727 km (0.054 R)
• M26: 33,500,648 km (0.116 R)
• M27: 37,481,148 km (0.057 R)
• M28: 38,523,396 km (0.108 R)
• M29: 49,849,750 km (0.083 R)
• M30: 56,167,269 km (0.11 R)
• M31: 56,943,831 km (0.086 R)
• M32: 61,138,555 km (0.067 R)
• M33: 65,107,088 km (0.119 R)
• M34: 74,248,864 km (0.114 R)
• M35: 75,654,486 km (0.118 R)
• M36: 83,451,975 km (0.113 R)
• M37: 84,209,389 km (0.069 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 459 - 12,109 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit